Tractor with trailer having tipping body



Patented Jan. 13, 1925.

UNITED STATI-:s .PATEN CHARLES BLUM, OF SURESNES, FRANCE.

TRACTOR WITH TRAILER HAVING TIPPING BODY.

Application filed 'September 27, 1922. Serial No. 590,908.

To all. whom it may cof/wem; n

Be it known that I, CHARLES BLUM, a c izen of the Republic of France, and residing at Suresnes, Seine Department, 8 Quai du angles to Fig. 2..

Marechal Gallieni., in the lRepublic: of France, engineer, have invented certain new and useful Tractors with rI railersI-Iaving Tipping Bodies, of which the following is a v specification.

For transportation by means of la tractor and trailer, it isoften necessary to provide a. trailer of the rear-tipping type. 'On the other hand, in order to obtain a saving of time and labour, attempts have been made to carry out the automatic coupling of -the trailer and the tractor. v

My invention relates to a tractor com bined with a trailer having a rear-tipping body, and employing an automatic coup ing, whereby `all the operations may be iperformed in a very sun le manner and with great rapidity. In` t is arrangement the tractor itself is provided with the tipping mechanism, so that it is notrequired to employ the same upon each trailer. Numerous systems of hoisting adapted for tipping purposes as. well .as systems of automatic couplin are already known, and these may be suita ly combinedin order to obtain the desired result.

Figure 1 is a side elevation of a tractor and trailer Vand a longitudinal section of a bracket mounted on the tractor.

Figure 2 is a detail vertical sectional view of the coupling head.

Figure 3 is a similar view taken at right The following description,together with 'the accompanying drawings, set forth a referred form of construction, this being il ustrated partly in elevation and partly 1n sec# tion, Fig. 1. The tractor is rovided with a bracket l1 slidable in a gui eway 2; said bracket may be raised "by the cables 3 of a hoist 4 of any known type but the hydraulic type is preferred for the present case. A hemi-spherical recess 5 is formed in said bracket where in is disposed the spherical head coupling element of the trailer. The said spherical head is provided 'in itsA middle ane with a roller 7 whereby it is enabled to roll upon the inclined plane situated at 'the rear of the tractor and endin level of the bracket 1, when the atteris at the lowered, Fig. 2. j

6 of the to mount upon the inclined plane 8 until it drops into` the recess 5 of bracket l, but in order to fall into said recess, the head 6 is obliged to push back la locking bolt 10 by compressing a spring l1. When said head reaches the-bottom of the recess, the said spring drives forward the bolt 10. The lat"- ter has-a forked'sha e, and engages the head by ittin upontllie neck 12. At this time the coup ing` operation is completed, andthe trailercan no longer be separated from the tractor except under the drivers control. A

To effect the rear tipping of the trailer, the driver while still remaining in his seat is only required to` operate the control devices ofthe hoist 4, and the latter acts through the cables 3 in order to raise the bracket 1 in the guideway 2. In this move- To bring back the trailer tothe travelling position, it is simply necessary to allow the hoist to descend.

For uncoupling the trailer (the driver .draws upon a rod 13, and he is thus enabled to release the neck 12 of the head 6 by draw, ing back the bolt 10; at the same time the y .driver throws on the'brake of the trailer while still in his seat, as the brake control is within reach of the hand. When .this is done, he Vstarts the tractor in a rapid Vman- 'Ihe head 6 leaves' the recess 5 anddescende alongthe yinclinedplane 8 Vuntil the block rests upon the ground. Y E

Obviously, without departing from the spirit of the inventioman suitable variations may bemade in the'li ting mechanism, the automatic couplingelements, the method of any one element with respect Vto another, and the like.

1. In a tractor with trailer having a rear tipping body, the combination of a bracket having an upward vand downward movement upon the tractor, a hemi-spherical re,- cess formed in the said bracket, means for llO raising the said bracket, and a Spherical head disposed at one end of the tipping body, and cooperating with the recess in said bracket.

2.- In a tractor'with trailer, the combination of a bracket having 'an upward and downward movement and wherein is formed a spherical recess, means for raising said bracket, a spherical head disposed at one end of the said tipping body, a roller disposed in the said spherical head, an inclined plane situated at the rear of the tractor and startingfrom the said bracket, and

p serving as a roller path for the lsaid roller.

3, In a tractor with trailer having a rear tipping body, the combination of a bracket having an upward and downward movevment and wherein vis formed a spherical rccess, vmeans for raising said bracket, a spherical head disposed at one end of the said body and cooperating with the recess in said bracket, a locking bolt disposed above said cavity and adapted to maintain thevsaid spherical head when the latteris engaged in said recess.v

-In testimony, that claim the foregoing as my invention I have signed my name.

. CHARLES BLUM. 

